sex

1.[u][c]性别the state of being male or female

2.[c]男性；女性；雄性；雌性either of the two groups that people, animals and plants are divided into according to their function of producing young

3.[u]性；性交；性行为；性活动physical activity between two people in which they touch each other's sexual organs, and which may include sexual intercourse

4.性行为…的；性欲…的having the amount of sexual activity or desire mentioned

1.性;(男女的)性别;〈集合词〉男性,女性

2.性的活动[器官];性交;性欲;色情

1.区别(小鸡等)的性别

2.增强...的性感;刺激起...的性欲

1.性的;与性有关的

1.the activity in which people kiss and touch each other’s sexual organs, which may also include sexual intercourse; relating to or involving sexual activity

2.males or females considered as separate groups; the group of features or qualities that make a person, animal, or plant either male or female

1.to find out if an animal is male or female